Device for sharpening plow shares and points



(No Model.)

"G. DOUGLASS. DevicefQr Sharpening Plow Shares and Points. No. 237,730. Patented. Feb. 15,188L

UNITED STATES PATENT OFFICE.

GILBERT DOUGLASS, OF VAN METER, IOWA.

DEVICE FOR SHARPENING PLOW SHARES AND POINTS.

SPECIFICATION forming part of Letters Patent No. 237,730, dated February 15, 1881.

Application filed July 20, 1880. (No model.)

To all whom it may concern:

Be it known that I, GILBERT DOUGLASS, of Van Meter, in the county of Dallas and State of Iowa, have invented a Device for Sharpening Plow Shares and Points, of which the following is a specification.

The object of my invention is to furnish a simple, cheap, and durable device that can be readily used for holding and supporting the edge of the plowshare, the edge of a roadscraper, and similar objects while they are drawn out and sharpened by beating with a hammer.

Heretofore an anvil and a frame and a wedge have been adjustably connected in such a manner that the complete device could be clamped fast to a plowsha-re' to accomplish the results contemplated.

My improved device consists in forming and combining two pieces that are cast complete in themselves in such a manner that they can be readily connected to produce tongs that are adapted to clamp and hold a plowshare or similar object, and also to serve as an anvil, upon which the edge that is to be sharpened may be beaten and drawn out, as hereinafter fully set forth. a

Figure 1 of my drawings is a perspective view of the forked part of my tongs, into which the anvil part is fitted. Fig. 2 is the anvil part. Fig.3 is a longitudinal section, showing the parts combined. Fig. et is a perspective view, showing the tongs closed as required to clasp and hold the edge of the plowshare. Together they clearly illustrate the construction and operation of my complete invention.

a represents the body of the jaw part of my device,in the shape ofa handle. It has forked branches 1; b and uniform jaws c projecting 40 at right angles from the ends of the branches.

d is a bead, formed integral with the body a and branches b. It; Ktends from the base of one branch to the other, and is designed to serve as a pintle for connecting the two parts of my complete device.

f represents the anvil part of my combined tongs and anvil. It conforms in shape and size with the forked jaw part of the tongs, into which it is to be placed. It has a body or handle, 09, corresponding in size and shape with the handle a of the jaw part or its mating part a b 0 d.

g is a transverse groove formed at the base of the anvil f, for the purpose of admitting the fixed bead or pintle d of the jaw part, and thereby forming a hinged connection between the two distinctparts, as required to produce the tongs.

The two distinct parts of my invention thus formed may be readily molded from suitable patterns and cast complete of malleable iron, and then placed together to produce a complete tool that can be advantageously used as a combined tongs and anvil for sharpening plows, and for various other purposes.

To sharpen a plow, I simply open the tongs,

' clasp the edge of the share or the point of the plow upon the end and inclined face of the anvil by means of the jaws c, and then with a hammer beat upon the edge or point that is exposed between the two jaws.

The size and Weight of my tongs and anvil may vary as desired.

I claim as my invention The combined tongs and anvil, consisting of the jaw part a b c d and the anvil partf, having a groove, g, and handle a substantially as and for the purpose set forth.

GILBERT DOUGLASS.

Witnesses:

FRANK W. HEERS, B. G. ORWIG. 

